adding
multiplying
dividing
subtracting
rounding
100

1+1=

it's 2

100

 4x5=

it's 20

100

12%4


it's 3

100

124537-66385

it's 58152

100

what is the nearest tenths place of

              6,868

its 6,870

200

29+37=


it's 66

200

21x4

it's 84

200

36%6

it's 6

200

987654-6207

it's 981447

200

round to the nearest thousands place 

                         6,573

its 

300

79+47

it's 126

300

44x23

it's 1012

300

5555555555%5

1111111111

300

64-46

its 18

400

25+96

it's 121

400

56x12

it's 672

400

21%7

it's 3

400

72-52

its 20


500

94+56=

it's 150

500

92x62

it's 5704

500

123456789%5

246137.8

500

46-43

its 3